The energy spectrum of $$\beta $$-particles [ number $$N(E)$$ as a function of $$\beta $$-energy $$E$$ ] emitted from a radioactive source is
The range of energy of $$\beta $$-particles is from zero to some maximum value.
MCQ (Single Correct Answer)
The $$'rad'$$ is the correct unit used to report the measurement of
the ability of a beam of gamma ray photons to produce ions in a target
the energy delivered by radiation to a target
the biological effect of radiation
the rate of decay of radioactive source
The risk posed to a human being by any radiation exposure depends partly upon the absorbed dose, the amount of energy absorbed per gram of tissue. Absorbed dose is expressed in rad. A rad is equal to $$100$$ $$ergs$$ of energy absorbed by $$1$$ gram of tissue. The more modern, internationally adopted unit is the gray (named after the English medical physicist $$L.$$ $$H.$$ Gray); one gray equals $$100$$ rad.
Questions Asked from Atoms and Nuclei
On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions